Enterprise Architecture (EA) serves as the strategic foundation for organizational change, yet its value is only realized through disciplined execution and continuous operational excellence. This paper synthesizes contemporary approaches to integrated framework implementation, demonstrating how the Scaled Agile Framework (SAFe), IT Service Management (ITIL), and Site Reliability Engineering (SRE) create a unified capability for aligning business strategy with technology delivery. Through systematic analysis of integration mechanisms across strategic, tactical, and operational domains, we establish that EA provides strategic direction while SAFe enables disciplined execution, ITIL ensures operational governance, and SRE validates reliability at scale. Contemporary research (2020-2025) demonstrates that organizations implementing this integrated approach achieve substantial improvements in time-to-market, system reliability exceeding 99.9% uptime, and strategic responsiveness enabling rapid market response. Our contribution establishes a comprehensive model demonstrating that integrated framework implementation creates organizational competitive advantage through coherent strategy-to-execution alignment, standardized operations, and rigorous reliability assurance. This synthesis offers practical guidance for enterprises navigating large-scale organizational change, cloud-native adoption, emerging technology integration, and sustainable competitive positioning in complex technology landscapes.